CN101728919B

CN101728919B - Elastic sheet bending device and method

Info

Publication number: CN101728919B
Application number: CN200810305340XA
Authority: CN
Inventors: 周源栩; 周代栩
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-10-31
Filing date: 2008-10-31
Publication date: 2012-03-28
Anticipated expiration: 2028-10-31
Also published as: CN101728919A

Abstract

The invention provides an elastic sheet bending device which comprises a bearing table, a bending element and a clamping element, wherein the clamping element is arranged between the bearing table and the bending element; the bearing table comprises a bearing surface and a side surface which is adjacent to the bearing surface; and the bending element comprises a main part and a press head which extends along one side of the main part. The length of the press head from the body to the direction of extending side is greater than the thickness of the clamping element, and the distance between the press head and the side surface is greater than the thickness of the elastic sheet to be bent. The invention also provides an elastic sheet bending method for bending elastic sheets by utilizing the elastic sheet bending device.

Description

Shell fragment bending device and shell fragment bending method

Technical field

The present invention relates to the voice coil motor technical field, particularly a kind of shell fragment bending device and adopt the shell fragment bending method of this bending device.

Background technology

Voice coil motor has that volume is little, power consumption reaches advantages such as cheap less; The actuator that is suitable as in the camera module (like digital camera, mobile phone, DV etc.) (sees also Design of a voice coil motor used in the focusing system of a digital video camera; Magnetics; IEEE Transactions on Volume 41, Issue 10, Oct.2005 Page (s): 3979-3981).

Common voice coil motor comprises that mainly fixed mount and one of a both ends open are installed in movable accommodating cylinder, a shell fragment of the both ends open in this fixed mount movably and are used to carry this fixed mount, movable accommodating cylinder and shell fragment and supporting body that fix with this fixed mount.This movable accommodating cylinder is used for installing elements such as lens barrel or the zoom eyeglass in the camera lens module.This shell fragment comprises that body reaches and the vertical pin that links to each other of body, and this pin is in order to the protection voice coil motor.In making the shell fragment process, usually body and pin are made in same plane, and in the subsequent group process of assembling, manually pin are bent with respect to body again, and the shell fragment after will bending and other elements are assembled into voice coil motor.

Yet; In assembling process, adopt artificial bending pin; Both increased the operation and the cycle of assembling process, can not effectively control each crooked place, angle and length again, the shell fragment that be difficult to guarantee the same model that the different operating personnel make all in same position with bending pins equal angular and length; Thereby the reduction yields, the follow-up assembling that influences voice coil motor is made.

Therefore, be necessary to provide a kind of shell fragment bending device and shell fragment bending method that can effectively improve shell fragment make efficiency and bending quality.

Summary of the invention

To a kind of shell fragment bending device and shell fragment bending method be described with specific embodiment below.

A kind of shell fragment bending device; It comprises microscope carrier, bending member and holder; Said holder places between microscope carrier and the bending member, and said microscope carrier comprises loading end and the side adjacent with loading end, and said bending member comprises body and the pressure head that extends of this body one side certainly; Greater than holder thickness, the distance between pressure head and this side is greater than waiting to bend shell fragment thickness from the length of said body on the direction of said side extension for said pressure head.

A kind of shell fragment bending method comprises step: provide and wait to bend shell fragment and the shell fragment bending device of the above, shell fragment said to be bent comprises body and links to each other and outward extending pin with body; Placement waits to bend the microscope carrier of shell fragment in the shell fragment bending device; Be inserted in holder and be fixed the body of waiting to bend shell fragment; Be inserted in the pin that the bending member press-bending waits to bend shell fragment.

With respect to prior art; The shell fragment bending device and the shell fragment bending method of present technique scheme have following advantage: at first; It utilizes microscope carrier and holder to be fixed shell fragment; And the pressure head that utilizes bending member bends the shell fragment unification of same model, guaranteed that the bending pins position of shell fragment, angle are consistent with length, improved the bending quality of shell fragment; Secondly, it can bend a plurality of shell fragments simultaneously, has improved the shell fragment make efficiency.

Description of drawings

Fig. 1 is the sketch map of the shell fragment bending device that provides of present technique scheme implementation example.

Fig. 2 is the sketch map that the present technique scheme waits to bend shell fragment.

Fig. 3 is the sketch map that the present technique scheme will shell fragment bent be positioned over shell fragment bending device microscope carrier.

Fig. 4 is the sketch map that the present technique scheme utilizes holder to be fixed to wait to bend shell fragment.

Fig. 5 is that the present technique scheme utilizes the bending member press-bending to wait to bend the sketch map of shell fragment.

Fig. 6 is the structural representation of the shell fragment after the present technique scheme bending pins.

Embodiment

To combine accompanying drawing that the shell fragment bending device of present technique scheme is done further explain below.

See also Fig. 1, the shell fragment bending device 100 that present technique scheme implementation example provides comprises base 12, microscope carrier 14, guide pillar 16, holder 20 and bending member 30.

Base 12 has first surface 122 and second surface 124.Said first surface 122 is parallel relative with second surface 124.

Microscope carrier 14 is fixed in base 12 central authorities, and fits with second surface 124.Microscope carrier 14 has the side 144 of a loading end 142 and and loading end 142 adjacency.Loading end 142 is away from second surface 124, and it is the plane parallel with second surface 124.Loading end 142 is installed with many group reference columns 148, reference column 148 from microscope carrier 14 to extending away from base 12 directions.In the present embodiment, microscope carrier 14 has seven groups of reference columns 148, and every group of reference column 148 has four, is used for cooperating the position with fixation spring tab with shell fragment to be bent.Groove 146 is offered in microscope carrier 14 from side 14, and it is being formed by connecting perpendicular to first plane 1462 of side 144 and with first inclined-plane 1464 of loading end 142 adjacency.First inclined-plane 1464 acutangulates with loading end 142, and the first surface 1444 and first inclined-plane 1464 acutangulate.Microscope carrier 14 can be magnet, is beneficial to absorption shell fragment to be bent.

Two guide pillars 16 are fixedly arranged on base 12 and are positioned at the both sides of microscope carrier 14.In the present embodiment, guide pillar 16 is a cylinder, and it is perpendicular to base 12.Certainly, microscope carrier 14 also can extend to concordant with base 12 two ends, and two guide pillars 16 also can directly be fixedly arranged on said microscope carrier 14 two ends.

Holder 20 is relative with microscope carrier 14.Holder 20 has the first relative stationary plane 22 and second stationary plane 24.First stationary plane 22 is relative with loading end 142, is used for cooperating with the shell fragment to be bent that is fixed and clamped with loading end 142.The two ends of holder 20 have the somewhat larger in diameter of first guide hole, 26, the first guide holes 26 that match with two guide pillars 16 in the external diameter of guide pillar 16, so that holder 20 slidably is sheathed on guide pillar 16.Holder 20 can be magnet or magnetic material, is fixed between microscope carrier 14 and the holder 20 with shell fragment that will be to be bent through magnetic force, and compresses shell fragment to be bent.Preferably, for fear of weighing shell fragment wounded, on relative first stationary plane 22 of holder 20 and microscope carrier 14 flexible material can be set.

Bending member 30 comprises body 32 and pressure head 34.In the present embodiment; The material of bending member 30 is engineering plastics; It can bear certain external force effect; Have favorable mechanical performance and high-and low-temperature resistance performance, dimensional stability is better, for example can select Noryl, thermoplastic polyester, high-molecular polythene, methylpentene polymer, ethenol copolymer etc. for use.Body 32 is parallel relative with microscope carrier 14.Body 32 has relative first 322 and second 324.First 322 relative with second stationary plane 24, is used for and second stationary plane, 24 contact matching.The two ends of body 32 have the somewhat larger in diameter of second guide hole, 36, the second guide holes 36 that match with two guide pillars 16 in the external diameter of guide pillar 16, so that bending member 30 slidably is sheathed on guide pillar 16.

Pressure head 34 extends to microscope carrier 14 directions from vertical first 322 of body 32, and the development length of pressure head 34 is greater than the thickness of holder 20, and the thickness of holder 20 refers to first stationary plane 22 of holder 20 and the distance between second stationary plane 24.Thereby when being inserted in holder 20 successively and compressing with bool 30 and with microscope carrier 14, pressure head 34 may extend to the opening part of the groove 146 of microscope carrier 14, with the bent shell fragment to be bent that is positioned over loading end 142.Pressure head 34 has and first 322 bending side 342 connected vertically.The bending side 342 of pressure head 34 and the distance between the side 144 are greater than the thickness of waiting to bend shell fragment.In the present embodiment, the thickness of pressure head 34 is along its bearing of trend attenuation gradually to microscope carrier 14.Have protruding 344 on the bending side 342 of the end that pressure head 34 extends.Protruding 344 are approximately half-cylindrical.When pressure head 34 contacted with shell fragment to be bent, this half round post protruding 344 treated that with shell fragment the bending place contacts earlier, can effectively reduce the bending stress of bending place, promotes the quality of bending place.Simultaneously, it is necessarily crooked excessively that this half round post protruding 344 can make shell fragment produce, and the shell fragment bending place has certain resilience force also can guarantee its bending angle thereby pressure head unclamps the back.

The shell fragment bending device 100 of present technique scheme utilizes microscope carrier 14 and holder 20 to be fixed shell fragment to be bent; And the pressure head 34 that utilizes bending member 30 treat the bending shell fragment bend; Can bend a plurality of shell fragments simultaneously; Improve bending efficient, and can effectively guarantee the bending quality of same model shell fragment.

Please consult Fig. 2 to Fig. 6 in the lump, present technique scheme implementation example also provides a kind of and utilizes above-mentioned shell fragment bending device 100 to treat the method that the bending shell fragment bends, and it may further comprise the steps:

The first step provides and waits to bend shell fragment 200 and aforesaid shell fragment bending device 100.

See also Fig. 2, saidly wait to bend shell fragment 200 and comprise body 210, link to each other with body 210 and outward extending pin 220 and link to each other with body 210 and be positioned at the waste 230 of pin 220 relative sides.

Body 210 can be designed to the plate body of Any shape as required, and pin 220 is used for linking to each other with external circuit, the waste material of waste 230 for staying in a plurality of shell fragment processes of punching press.Body 210, pin 220 and waste 230 coplane settings.In the present embodiment, body 210 is a square plate body, and its geometric center offers one and accommodates through hole 211 and center on the elastic portion 212 of accommodating through hole 211.Accommodating through hole 211 passes through for light and entering driven element (like the camera lens module).Four drift angles of body 210 are opened and are respectively equipped with guide hole 213, pass and locate body 210 for reference column 148.This pin 220 need be from junction bending 90 degree of body 210 with pin 220, to obtain the shell fragment of the required making of present embodiment.Certainly, also can be as required only pressure head divide pin 220.

In second step, place and wait to bend the microscope carrier 14 of shell fragment 200 in shell fragment bending device 100.

See also Fig. 3, with waiting that the body 210 that bends shell fragment 200 is positioned in the loading end 142 of microscope carrier 14, and make four guide holes 213 of each shell fragment 200 pass four reference column 148 matching and fixing of every group respectively.Pin 220 stretches out to the side that microscope carrier 14 has groove 146 from loading end 142.

In the 3rd step, be inserted in holder 20 and be fixed the body 210 of waiting to bend shell fragment 200.

See also Fig. 4, make two first guide holes 26 at holder 20 two ends relative with two guide pillars 16 respectively, holder 20 is inserted in to guide pillar 16.Because microscope carrier 14 is magnetic material with holder 20, thereby holder 20 is inserted in to guide pillar 16, the effect of microscope carrier 14 and holder 20 magnetic force capable of using is fixed waits to bend shell fragment 200.

In the 4th step, be inserted in the pin 220 that bending member 30 press-bendings wait to bend shell fragment 200.

See also Fig. 5, make two second guide holes 36 at bending member 30 two ends relative with two guide pillars 16 respectively, bending member 30 is inserted in to guide pillar 16.The pressure head 34 of bending member 30 contacts with the pin 220 of shell fragment 200, and when microscope carrier 14 directions moved, pin 220 is stressed to be depressed until bending member 30 to groove 146 inner bendings bending member 30 fully along guide pillar 16, pin 220 is bent into and 210 one-tenth 90 degree of body.Take out bending member 30 and holder 20 successively, the shell fragment 300 after can obtaining bending, as shown in Figure 6.

Certainly, follow-up also the need removed the waste 330 of shell fragment 300, to obtain being suitable for being assembled to the monolithic shell fragment of voice coil motor.In addition, for the shell fragment that does not have waste, also can use the shell fragment bending device of present technique scheme and shell fragment bending method that its pin is bent.

It is understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion, and all these change the protection range that all should belong to present technique scheme claim with distortion according to the technical conceive of present technique scheme.

Claims

1. shell fragment bending device; It comprises microscope carrier, bending member and holder; Said holder places between microscope carrier and the bending member, and said microscope carrier comprises loading end and the side adjacent with loading end, and said bending member comprises body and the pressure head that extends of this body one side certainly; Greater than holder thickness, the distance between pressure head and this side is greater than waiting to bend shell fragment thickness from the length of said body on the direction of said side extension for said pressure head.

2. shell fragment bending device as claimed in claim 1; It is characterized in that; Said shell fragment bending device also comprises base and two guide pillars, and microscope carrier is fixed in base, and two guide pillars are fixed in base and lay respectively at the microscope carrier both sides; These holder two ends are formed with two first guide holes that slidably are sheathed on two guide pillars respectively, and the body two ends of this bending member form two respectively and slidably are sheathed on two guide pillar second guide holes respectively.

3. shell fragment bending device as claimed in claim 1 is characterized in that, the side near this loading end on the said side offers groove.

4. shell fragment bending device as claimed in claim 1 is characterized in that, has semi-cylindrical convexity on the side of terminal this side relatively of said pressure head.

5. shell fragment bending device as claimed in claim 1 is characterized in that, the surface of the relative microscope carrier of said holder is provided with flexible material.

6. shell fragment bending device as claimed in claim 1 is characterized in that, interfixes through magnetic means between said holder and the microscope carrier.

7. shell fragment bending device as claimed in claim 1 is characterized in that, said loading end extends many group reference columns, and reference column is used for fixing the position of waiting to bend shell fragment.

8. shell fragment bending device as claimed in claim 1 is characterized in that said side becomes an angle of 90 degrees with loading end.

9. shell fragment bending method comprises step:

Provide and wait to bend shell fragment and shell fragment bending device as claimed in claim 1, shell fragment said to be bent comprises body and links to each other and outward extending pin with body;

Placement waits to bend the microscope carrier of shell fragment in the shell fragment bending device;

Be inserted in holder and be fixed the body of waiting to bend shell fragment;

Be inserted in the pin that the bending member press-bending waits to bend shell fragment.